I-JOISTS AND FIRE The lumber industry will say that as a protected assembly, following ASTM E-119, Standard Test Methods for Fire Tests of Building Construction and Materials, the wooden I-joists should pose no significant threat.

How much weight can a tji hold?

Depth TJI® 40 PSF Live Load / 10 PSF Dead Load 40 PSF Live Load / 20 PSF Dead Load 12″ o.c. 16″ o.c. 19.2″ o.c. 24″ o.c. 12″ o.c. 16″ o.c. 19.2″ o.c. 24″ o.c.

How do you soundproof joists?

Decouple The Floor From The Joists: Decoupling your floor from the joists is a relatively easy and cheap way of soundproofing them. This involved pulling up the floorboards and fitting cushioning on top of the joists which the floorboards will then lay on. This will dampen soundwaves traveling into the floor.